---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-22-021942"
form_type: "8-K"
ticker: "GBTC"
cik: "0001588489"
company_name: "Grayscale Bitcoin Trust ETF"
filed_at: "2022-11-03T23:59:59+00:00"
generated_at: "2026-06-22T09:03:03.034353+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Grayscale Bitcoin Trust changes index constituents; Binance.US added, Bitstamp removed

## Summary
- Effective Oct 29, 2022, Bitstamp removed from CoinDesk Bitcoin Price Index (XBX) due to failing minimum liquidity requirement.
- Binance.US added as a Constituent Exchange after meeting liquidity threshold in scheduled quarterly review.
- Current Index exchanges: Coinbase Pro, Binance.US, Kraken, and LMAX Digital.

## SEC filing metadata
- accession: 0000950170-22-021942
- form_type: 8-K
- ticker: GBTC
- cik: 0001588489
- company_name: Grayscale Bitcoin Trust ETF
- filed_at: 2022-11-03T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1588489/000095017022021942/0000950170-22-021942-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1588489/000095017022021942/gbtc-20221029.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-22-021942
- JSON: https://secwatch.observer/filing/0000950170-22-021942.json
- Plain text: https://secwatch.observer/filing/0000950170-22-021942.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.